JP7063205B2 - Stator winding structure - Google Patents

Stator winding structure Download PDF

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JP7063205B2
JP7063205B2 JP2018168720A JP2018168720A JP7063205B2 JP 7063205 B2 JP7063205 B2 JP 7063205B2 JP 2018168720 A JP2018168720 A JP 2018168720A JP 2018168720 A JP2018168720 A JP 2018168720A JP 7063205 B2 JP7063205 B2 JP 7063205B2
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coil
phase
slot
stator winding
laminated steel
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JP2020043677A (en
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大器 松橋
圭祐 松尾
翔 内山
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Meidensha Corp
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Description

本発明は、固定子巻線構造に関する。詳しくは、回転機の固定子巻線におけるコイルエンド寸法を従来よりも縮小する構造に関する。 The present invention relates to a stator winding structure. More specifically, the present invention relates to a structure in which the coil end dimension of the stator winding of the rotary machine is reduced as compared with the conventional one.

特許文献１には、「セグメント導体のターン部の中央をねじって周方向に異なるスロットにセグメント導体を設置しているので、図２４に示すように固定子コア３００の軸方向両端側に突出する固定子巻線３１０の部分（以下、固定子コアから軸方向に突出している固定子巻線の部分を「コイルエンド」という。）の高さｈが高く、固定子コア３００から固定子巻線３１０が大きく突出するという問題がある。」と記載されている（段落０００３）。
また、特許文献２には、「第３のコイルのコイルエンドが第１のコイルおよび第２のコイルのコイルエンドの一方または両方と重なるため、コイルエンドの突出高さ（回転軸方向の寸法）が大きくなるという問題点がある。コイルエンドの突出高さの増大は、回転電機の大型化や、損失の増加をもたらすため、好ましくない。」と記載されている（段落０００５）。 In Patent Document 1, "Since the segment conductor is installed in different slots in the circumferential direction by twisting the center of the turn portion of the segment conductor, it projects to both ends in the axial direction of the stator core 300 as shown in FIG. 24. The height h of the portion of the stator winding 310 (hereinafter, the portion of the stator winding protruding in the axial direction from the stator core is referred to as "coil end") is high, and the stator winding is formed from the stator core 300. There is a problem that the 310 protrudes greatly. "(Paragraph 0003).
Further, in Patent Document 2, "because the coil end of the third coil overlaps with one or both of the coil ends of the first coil and the second coil, the protruding height of the coil end (dimension in the rotation axis direction). It is not preferable to increase the protruding height of the coil end because it causes an increase in the size of the rotary electric machine and an increase in loss. ”(Paragraph 0005).

特開２０１０－１１９２９５号公報JP-A-2010-119295 国際公開第２０１３／１７９４９１号International Publication No. 2013/179491

従来では、特許文献１に記載される通り、コイルエンドの高さが高く、固定子コアから固定子巻線が大きく突出するという問題や、特許文献２に記載される通り、コイルエンドの突出高さ（回転軸方向の寸法）が大きくなるという問題があった。即ち、回転機の巻線は、極数が少なくコイルピッチが広い設計ほど、コイルエンドが大きくなってしまうという課題があった。
本発明は、上記課題を解決せんとするものであり、回転機の固定子巻線におけるコイルエンド寸法を従来よりも縮小することを目的とする。 Conventionally, as described in Patent Document 1, the height of the coil end is high, and the stator winding protrudes greatly from the stator core. Also, as described in Patent Document 2, the protruding height of the coil end. There was a problem that the height (dimension in the direction of the rotation axis) became large. That is, there is a problem that the coil end of the winding of the rotating machine becomes larger as the number of poles is smaller and the coil pitch is wider.
The present invention is intended to solve the above problems, and an object of the present invention is to reduce the coil end size of the stator winding of a rotating machine as compared with the conventional one.

上記課題を解決する本発明の請求項１に係る固定子巻線構造は、回転機の固定子鉄心に巻嵌めされる丸線或いは平角線コイルよりなる固定子巻線構造において、各相の巻線は毎極毎相のスロット数毎に同心に巻かれた前記巻線を各スロットに異なる２つの前記巻線の束が入るように配置し、前記巻線の渡り部が干渉しないように成形した前記巻線を、前記固定子鉄心に設けられた前記巻線を嵌める前記スロットの深さが２種類以上ある前記固定子鉄心に嵌めたことを特徴とする。 The stator winding structure according to claim 1 of the present invention, which solves the above-mentioned problems, is a stator winding structure composed of a round wire or a flat wire coil wound around a stator core of a rotating machine, in which each phase is wound. The wire is formed so that the windings wound concentrically for each pole and the number of slots of each phase are arranged so that two different bundles of the windings are inserted in each slot so that the crossing portion of the windings does not interfere with each other. The winding is fitted into the stator core having two or more depths of the slot into which the winding provided in the stator core is fitted.

上記課題を解決する本発明の請求項２に係る固定子巻線構造は、前記固定子鉄心は、複数の積層鋼板から構成され、中心部の前記積層鋼板のスロット深さに対して、軸方向端部に配置された前記積層鋼板のスロット深さが深くなっていることを特徴とする。 In the stator winding structure according to claim 2 of the present invention, which solves the above problems, the stator core is composed of a plurality of laminated steel plates, and is axially oriented with respect to the slot depth of the laminated steel plate at the center. The laminated steel plate arranged at the end is characterized in that the slot depth is deep.

本発明では、コイルエンド渡り部を上口コイルと下口コイルの間に形成された空間に配置することができるので、極数が小さく渡り長が長くなってしまうコイルでも、コイルエンドの高さを低減することができる。つまり、固定子巻線におけるコイルエンド寸法を従来よりも縮小することができるという効果を奏する。 In the present invention, since the coil end crossover portion can be arranged in the space formed between the upper port coil and the lower port coil, the height of the coil end is high even for a coil having a small number of poles and a long crossover length. Can be reduced. That is, the effect is that the coil end dimension of the stator winding can be reduced as compared with the conventional case.

第１の実施例に係る固定子巻線構造の全体斜視図である。It is an overall perspective view of the stator winding structure which concerns on 1st Embodiment. 第１の実施例に係る固定子巻線構造を軸方向に切断したスロット断面図（簡略）である。It is a slot sectional view (simplification) which cut the stator winding structure which concerns on 1st Embodiment in the axial direction. 第１の実施例に係る固定子巻線構造における三相コイルを簡易的に横方向に配置した配置図である。It is a layout drawing which arranged the three-phase coil in the stator winding structure which concerns on 1st Embodiment simply in the lateral direction. 第１の実施例に係る固定子巻線構造を内径側から見た様子を示す三相コイル展開図（簡略）である。It is a three-phase coil development view (simplification) which shows the state which the stator winding structure which concerns on 1st Embodiment is seen from the inner diameter side. 第１の実施例に係る固定子巻線構造を軸方向に切断したスロット断面図（詳細）である。It is a slot sectional view (detail) which cut the stator winding structure which concerns on 1st Embodiment in the axial direction. 第１の実施例に係る固定子巻線構造における三相コイルを軸方向から見た正面図である。It is a front view which looked at the three-phase coil in the stator winding structure which concerns on 1st Embodiment from the axial direction. 第１の実施例に係る固定子巻線構造を内径側から見た様子を示す三相コイル展開図（詳細）である。It is a three-phase coil development view (details) which shows the appearance which the stator winding structure which concerns on 1st Embodiment is seen from the inner diameter side. 第２の実施例に係る固定子巻線構造の全体斜視図である。It is an overall perspective view of the stator winding structure which concerns on 2nd Embodiment. 第２の実施例に係る固定子巻線構造を軸方向に切断したスロット断面図（簡略）である。It is a slot sectional view (simplification) which cut the stator winding structure which concerns on 2nd Embodiment in the axial direction. 第２の実施例に係る固定子巻線構造における三相コイルを簡易的に横方向に配置した配置図である。It is a layout drawing which simply arranged the three-phase coil in the stator winding structure which concerns on 2nd Embodiment in the lateral direction. 第２の実施例に係る固定子巻線構造を内径側から見た様子を示す三相コイル展開図（簡略）である。It is a three-phase coil development view (simplification) which shows the appearance which the stator winding structure which concerns on 2nd Embodiment is seen from the inner diameter side. 第２の実施例に係る固定子巻線構造を軸方向に切断したスロット断面図（詳細）である。It is a slot sectional view (detail) which cut the stator winding structure which concerns on 2nd Embodiment in the axial direction. 第２の実施例に係る固定子巻線構造における三相コイルを軸方向から見た正面図である。It is a front view which looked at the three-phase coil in the stator winding structure which concerns on 2nd Embodiment from the axial direction. 第２の実施例に係る固定子巻線構造を内径側から見た様子を示す三相コイル展開図（詳細）である。It is a three-phase coil development view (details) which shows the appearance which the stator winding structure which concerns on 2nd Embodiment is seen from the inner diameter side.

以下、本発明について、図面に示す実施例を参照して詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the examples shown in the drawings.

本発明の第１の実施例に係る固定子巻線構造を図１Ａ～図１Ｇに示す。
本実施例は、丸線よりなるコイル（巻線）の例である。 The stator winding structure according to the first embodiment of the present invention is shown in FIGS. 1A to 1G.
This embodiment is an example of a coil (winding) made of a round wire.

即ち、図１Ａに示すように、固定子鉄心１０は中心部に配置された積層鋼板１０Ｂと、軸方向両端に配置された積層鋼板１０Ａ，１０Ａとから構成され、これら積層鋼板１０Ａ，１０Ｂ，１０Ａのスロットには、丸線よりなる三相コイル２０Ｕ，２０Ｖ，２０Ｗが巻嵌められている。 That is, as shown in FIG. 1A, the stator core 10 is composed of laminated steel plates 10B arranged at the center and laminated steel plates 10A, 10A arranged at both ends in the axial direction, and these laminated steel plates 10A, 10B, 10A. A three-phase coil 20U, 20V, 20W made of a round wire is wound in the slot of.

ここで、固定子巻線構造を軸方向に切断した図１Ｂに示すように、中心部の積層鋼板１０Ｂは通常のスロット深さを有するのに対して、軸方向両端に配置された積層鋼板１０Ａはスロット深さが積層鋼板１０Ｂよりも深くなっている。
即ち、固定子鉄心１０は、巻線である丸線コイルを嵌めるスロットの深さが、軸方向沿って、一端部では深く、中央部では浅く、他端部では深いという３種類の深さとなっている。 Here, as shown in FIG. 1B in which the stator winding structure is cut in the axial direction, the laminated steel plate 10B at the center has a normal slot depth, whereas the laminated steel plates 10A arranged at both ends in the axial direction. The slot depth is deeper than that of the laminated steel plate 10B.
That is, the stator core 10 has three types of depths, that is, the depth of the slot into which the round wire coil, which is the winding, is fitted, is deep at one end, shallow at the center, and deep at the other end along the axial direction. ing.

なお、図１Ａでは、三相コイル２０Ｕ，２０Ｖ，２０Ｗを概略的に示したが、図１Ｃでは個別的に示した。また、図１Ａにおいて、三相コイル２０Ｕ，２０Ｖ，２０Ｗを視覚的に識別容易とするために、三相コイル２０Ｖには点々を付し、三相コイル２０Ｗにはグレーを付したが、実際にはこのような表示がなされるわけではない。
ここで、三相コイル２０Ｕ，２０Ｖ，２０Ｗの内、ー相分のコイルについては、毎極毎相のスロット数ｑに等しい種類だけ用意する。 Although the three-phase coils 20U, 20V, and 20W are shown schematically in FIG. 1A, they are shown individually in FIG. 1C. Further, in FIG. 1A, in order to make it easy to visually distinguish the three-phase coils 20U, 20V, and 20W, the three-phase coils 20V are dotted and the three-phase coils 20W are grayed out. Is not displayed in this way.
Here, among the three-phase coils 20U, 20V, and 20W, only the types equal to the number of slots q of each pole and each phase are prepared for the coils for the-phase.

即ち、総スロット数をＳ、極数をｐ、相数をｍとすると、ｑ＝Ｓ／（ｍ・ｐ）が成り立つ。
図１の場合、総スロット数が３６、極数が４、相数が３であるから、ｑ＝３６／（３・４）＝３より、３種類のコイルを用意する。 That is, if the total number of slots is S, the number of poles is p, and the number of phases is m, q = S / (m · p) holds.
In the case of FIG. 1, since the total number of slots is 36, the number of poles is 4, and the number of phases is 3, three types of coils are prepared from q = 36 / (3.4) = 3.

三相コイル２０Ｕ，２０Ｖ，２０Ｗの内の一つである三相コイル２０Ｕを軸方向から見ると、図１Ｆに示すように、重なり合っているが、図１Ｇに示すように内径側から見ると、３種類の異なる形状のコイルであることが判る。
図１Ａ～図１Ｇに示すように、各々の、三相コイル２０Ｕ，２０Ｖ，２０Ｗは積層鋼板１０Ａのスロット内部で外径側に広がるように曲げられ、３種類のコイルは同心上に巻かれる。分布巻の中でも同心巻と呼ばれる。さらに、三相コイル２０Ｕ，２０Ｖ，２０Ｗを簡易的に横方向に配置した図１Ｃに示すように、各スロットには、異なる二つの巻線の束が配置されている。即ち、２層巻となっている。 When the three-phase coil 20U, which is one of the three-phase coils 20U, 20V, and 20W, is viewed from the axial direction, they overlap each other as shown in FIG. 1F, but when viewed from the inner diameter side as shown in FIG. 1G, they overlap. It can be seen that there are three types of coils with different shapes.
As shown in FIGS. 1A to 1G, each of the three-phase coils 20U, 20V, and 20W is bent so as to spread toward the outer diameter inside the slot of the laminated steel plate 10A, and the three types of coils are wound concentrically. .. Among the distributed rolls, it is called a concentric roll. Further, as shown in FIG. 1C in which the three-phase coils 20U, 20V, and 20W are simply arranged laterally, a bundle of two different windings is arranged in each slot. That is, it is a two-layer winding.

そのため、スロットの開口部側に位置する上口コイルとスロットの底部側に位置する下口コイルの間に空間を設け、その空間を利用してコイルエンド渡り部が干渉せずに配置できる。 Therefore, a space is provided between the upper port coil located on the opening side of the slot and the lower port coil located on the bottom side of the slot, and the space can be used to arrange the coil end crossing portion without interfering with each other.

以上、実施例に基づいて具体的に説明した通り、本実施例の固定子巻線構造によれば、通常のスロット深さの鋼板（積層鋼板１０Ｂ）とスロット深さを深くした鋼板（積層鋼板１０Ａ）を積層し、スロットの深い積層鋼板１０Ａのスロット内部で三相コイル２０Ｕ，２０Ｖ，２０Ｗを曲げてコイルエンド側に引き出したので、上口コイルと下口コイルの間に空間を設けることができ、その空間を利用してコイルエンド渡り部が干渉せずに配置できる。 As described above in detail based on the embodiment, according to the stator winding structure of the present embodiment, a steel plate having a normal slot depth (laminated steel plate 10B) and a steel plate having a deep slot depth (laminated steel plate) 10A) was laminated, and the three - phase coils 20U, 20V, 20W were bent inside the slot of the laminated steel plate 10A with a deep slot and pulled out to the coil end side, so a space should be provided between the upper and lower coils. And the space can be used to arrange the coil end crossing without interference.

即ち、本発明では、コイルエンド渡り部を上口コイルと下口コイルの間に形成された空間に配置することができるので、極数が小さく渡り長が長くなってしまうコイルでも、コイルエンドの高さを低減することができる。つまり、固定子巻線におけるコイルエンド寸法を従来よりも縮小することができるという効果を奏する。 That is, in the present invention, since the coil end crossover portion can be arranged in the space formed between the upper port coil and the lower port coil, even a coil having a small number of poles and a long crossover length can be used as a coil end. The height can be reduced. That is, the effect is that the coil end dimension of the stator winding can be reduced as compared with the conventional case.

なお、本実施例では、スロットの深さが３種類の深さとなっているが、軸方向に沿って、一端部では深く、中央部では浅く、他端部では浅いという２種類の深さとしても良い。このよう２種類の深さとしても、片端側におけるコイルエンドの高さを低減することができるという効果を奏する。 In this embodiment, the depths of the slots are three types of depths, but along the axial direction, there are two types of depths: deep at one end, shallow at the center, and shallow at the other end. Is also good. Even with these two depths, the height of the coil end on one end side can be reduced.

本発明の第２の実施例に係る固定子巻線構造を図２Ａ～図２Ｇに示す。
本実施例は、平角線よりなるコイル（巻線）の例である。即ち、実施例1の丸線よりなる三相コイル２０Ｕ，２０Ｖ，２０Ｗに代えて、平角線よりなる三相コイル３０Ｕ，３０Ｖ，３０Ｗを用いたものであり、その他の構成は、前述した実施例１と同様である。 The stator winding structure according to the second embodiment of the present invention is shown in FIGS. 2A to 2G.
This embodiment is an example of a coil (winding) made of a flat wire. That is, instead of the three-phase coils 20U, 20V, 20W made of the round wire of the first embodiment, the three-phase coils 30U, 30V, 30W made of the flat wire are used, and the other configurations are the above-mentioned Examples. It is the same as 1.

即ち、図２Ａに示すように、固定子鉄心１０は中心部に配置された積層鋼板１０Ｂと、軸方向両端に配置された積層鋼板１０Ａ，１０Ａとから構成され、これら積層鋼板１０Ａ，１０Ｂ，１０Ａのスロットには、平角線よりなる三相コイル３０Ｕ，３０Ｖ，３０Ｗが巻嵌められている。
ここで、固定子巻線構造を軸方向に切断した図２Ｂに示すように、中心部の積層鋼板１０Ｂは通常のスロット深さを有するのに対して、軸方向両端に配置された積層鋼板１０Ａはスロット深さが積層鋼板１０Ｂよりも深くなっている。 That is, as shown in FIG. 2A, the stator core 10 is composed of laminated steel plates 10B arranged at the center and laminated steel plates 10A, 10A arranged at both ends in the axial direction, and these laminated steel plates 10A, 10B, 10A. A three-phase coil 30U, 30V, 30W made of a flat wire is wound in the slot of.
Here, as shown in FIG. 2B in which the stator winding structure is cut in the axial direction, the laminated steel plate 10B at the center has a normal slot depth, whereas the laminated steel plates 10A arranged at both ends in the axial direction. The slot depth is deeper than that of the laminated steel plate 10B.

即ち、固定子鉄心１０は、巻線である平角線コイルを嵌めるスロットの深さが、軸方向に沿って、深い、浅い、深いという３種類以上となっている。
なお、図２Ａでは、三相コイル３０Ｕ，３０Ｖ，３０Ｗを概略的に示したが、図２Ｃでは個別的に示した。また、図２Ａにおいて、三相コイル３０Ｕ，３０Ｖ，３０Ｗを視覚的に識別容易とするために、三相コイル３０Ｖには点々を付し、三相コイル３０Ｗにはグレーを付したが、実際にはこのような表示がなされるわけではない。 That is, the stator core 10 has three or more types of deep, shallow, and deep slots in which the flat wire coil, which is a winding, is fitted, along the axial direction.
Although the three-phase coils 30U, 30V, and 30W are shown schematically in FIG. 2A, they are shown individually in FIG. 2C. Further, in FIG. 2A, in order to make it easy to visually distinguish the three-phase coils 30U, 30V, and 30W, the three-phase coils 30V are dotted and the three-phase coils 30W are grayed out. Is not displayed in this way.

ここで、三相コイル３０Ｕ，３０Ｖ，３０Ｗの内、ー相分のコイルについては、毎極毎相のスロット数ｑに等しい種類だけ用意する。
即ち、総スロット数をＳ、極数をｐ、相数をｍとすると、ｑ＝Ｓ／（ｍ・ｐ）が成り立つ。
図２の場合、総スロット数が３６、極数が４、相数が３であるから、ｑ＝３６／（３・４）＝３より、３種類のコイルを用意する。 Here, among the three-phase coils 30U, 30V, and 30W, only the types equal to the number of slots q of each pole and each phase are prepared for the coils for the phases.
That is, if the total number of slots is S, the number of poles is p, and the number of phases is m, q = S / (m · p) holds.
In the case of FIG. 2, since the total number of slots is 36, the number of poles is 4, and the number of phases is 3, three types of coils are prepared from q = 36 / (3.4) = 3.

三相コイル３０Ｕ，３０Ｖ，３０Ｗの内の一つである三相コイル３０Ｕを軸方向から見ると、図２Ｆに示すように、重なり合っているが、図２Ｇに示すように内径側から見ると、３種類の異なる形状のコイルであることが判る。
図２Ａ～図２Ｇに示すように、各々の、三相コイル３０Ｕ，３０Ｖ，３０Ｗは積層鋼板１０Ａのスロット内部で外径側に広がるように曲げられ、３種類のコイルは同心上に巻かれる。分布巻の中でも同心巻と呼ばれる。さらに、三相コイル３０Ｕ，３０Ｖ，３０Ｗを簡易的に横方向に配置した図２Ｃに示すように、各スロットには、異なる二つの巻線の束が配置されている。即ち、２層巻となっている。 When the three-phase coil 30U, which is one of the three-phase coils 30U, 30V, and 30W, is viewed from the axial direction, they overlap each other as shown in FIG. 2F, but when viewed from the inner diameter side as shown in FIG. 2G, they overlap. It can be seen that there are three types of coils with different shapes.
As shown in FIGS. 2A to 2G, each of the three - phase coils 30U, 30V, and 30W is bent so as to spread toward the outer diameter inside the slot of the laminated steel plate 10A, and the three types of coils are wound concentrically. .. Among the distributed rolls, it is called a concentric roll. Further, as shown in FIG. 2C in which the three-phase coils 30U, 30V, and 30W are simply arranged in the lateral direction, a bundle of two different windings is arranged in each slot. That is, it is a two-layer winding.

そのため、スロットの開口部側に位置する上口コイルとスロットの底部側に位置する下口コイルの間に空間を設け、その空間を利用してコイルエンド渡り部が干渉せずに配置できる。 Therefore, a space is provided between the upper port coil located on the opening side of the slot and the lower port coil located on the bottom side of the slot, and the space can be used to arrange the coil end crossing portion without interfering with each other.

以上、実施例に基づいて具体的に説明した通り、本実施例の固定子巻線構造によれば、通常のスロット深さの鋼板（積層鋼板１０Ｂ）とスロット深さを深くした鋼板（積層鋼板１０Ａ）を積層し、スロットの深い積層鋼板１０Ａのスロット内部で三相コイル３０Ｕ，３０Ｖ，３０Ｗを曲げてコイルエンド側に引き出したので、上口コイルと下口コイルの間に空間を設けることができ、その空間を利用してコイルエンド渡り部が干渉せずに配置できる。 As described above in detail based on the embodiment, according to the stator winding structure of the present embodiment, a steel plate having a normal slot depth (laminated steel plate 10B) and a steel plate having a deep slot depth (laminated steel plate) 10A) was laminated, and the three - phase coils 30U, 30V, 30W were bent inside the slot of the laminated steel plate 10A with a deep slot and pulled out to the coil end side, so a space should be provided between the upper and lower coils. And the space can be used to arrange the coil end crossing without interference.

即ち、本発明では、コイルエンド渡り部を上口コイルと下口コイルの間に形成された空間に配置することができるので、極数が小さく渡り長が長くなってしまうコイルでも、コイルエンドの高さを低減することができる。つまり、固定子巻線におけるコイルエンド寸法を従来よりも縮小することができるという効果を奏する。 That is, in the present invention, since the coil end crossover portion can be arranged in the space formed between the upper port coil and the lower port coil, even a coil having a small number of poles and a long crossover length can be used as a coil end. The height can be reduced. That is, the effect is that the coil end dimension of the stator winding can be reduced as compared with the conventional case.

なお、本実施例では、スロットの深さが３種類となっているが、軸方向に沿って、一端部では深く、中央部では浅く、他端部では浅いという２種類の深さとしても良い。このよう２種類の深さとしても、片端側におけるコイルエンドの高さを低減することができるという効果を奏する。 In this embodiment, the depths of the slots are three types, but two types of depths may be used along the axial direction: deep at one end, shallow at the center, and shallow at the other end. .. Even with these two depths, the height of the coil end on one end side can be reduced.

本発明は、固定子巻線構造として、産業上広く利用可能なものである。 INDUSTRIAL APPLICABILITY The present invention is industrially widely available as a stator winding structure.

１０ 固定子鉄心
１０Ａ，１０Ｂ 積層鋼板
２０Ｕ，２０Ｖ，２０Ｗ 丸線よりなる三相コイル
３０Ｕ，３０Ｖ，３０Ｗ 平角線よりなる三相コイル 10 Stator core 10A, 10B Laminated steel plate 20U, 20V, 20W Three-phase coil made of round wire 30U, 30V, 30W Three-phase coil made of flat wire

Claims (1)

回転機の固定子鉄心に巻嵌めされる丸線或いは平角線コイルよりなる固定子巻線構造において、各相の巻線は毎極毎相のスロット数毎に同心に巻かれた前記巻線を各スロットに異なる２つの前記巻線の束が入るように配置し、前記巻線の渡り部が干渉しないように成形した前記巻線を、前記固定子鉄心に設けられた前記巻線を嵌めるスロットの深さが２種類以上ある前記固定子鉄心に嵌め、
前記固定子鉄心は、複数の積層鋼板から構成され、中心部の当該積層鋼板のスロット深さに対して、軸方向端部の当該積層鋼板のスロット深さが深くなっており、
前記巻線は、前記軸方向端部のスロット内部で外径側に広がるように曲げられてコイルエンド側に引き出され、
一相分のコイルは、以下の式に基づいて定められる前記毎極毎相のスロット数ｑと等しい種類数とすることを特徴とする固定子巻線構造。
ｑ＝Ｓ／（ｍ・ｐ）
ｑ：毎極毎相のスロット数
Ｓ：総スロット数
ｐ：極数
ｍ：相数 In a stator winding structure consisting of a round wire or a flat wire coil wound around the stator core of a rotating machine, the winding of each phase is the winding wound concentrically for each pole and the number of slots of each phase. A slot in which the windings provided in the stator core are fitted into the windings, which are arranged so that two different bundles of the windings are inserted in each slot and molded so that the crossing portion of the windings does not interfere with each other. Fit into the stator core with two or more depths ,
The stator core is composed of a plurality of laminated steel plates, and the slot depth of the laminated steel plate at the axial end is deeper than the slot depth of the laminated steel plate at the center.
The winding is bent so as to spread toward the outer diameter side inside the slot at the axial end portion, and is pulled out toward the coil end side.
The stator winding structure is characterized in that the coil for one phase has the same number of types as the number of slots q for each pole and each phase, which is determined based on the following equation .
q = S / (m · p)
q: Number of slots for each pole and each phase
S: Total number of slots
p: Number of poles
m: number of phases
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010124577A (en) 2008-11-19 2010-06-03 Denso Corp Motor
JP2013128362A (en) 2011-12-19 2013-06-27 Aisin Seiki Co Ltd Wave winding for three-phase rotary electric machine
JP2017184475A (en) 2016-03-30 2017-10-05 アイシン精機株式会社 Motor device and manufacturing method for motor device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010124577A (en) 2008-11-19 2010-06-03 Denso Corp Motor
JP2013128362A (en) 2011-12-19 2013-06-27 Aisin Seiki Co Ltd Wave winding for three-phase rotary electric machine
JP2017184475A (en) 2016-03-30 2017-10-05 アイシン精機株式会社 Motor device and manufacturing method for motor device

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